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The SRK Combi Reader HL40 is a high-performance Dual Frequency USB RFID Reader designed to support both 125kHz Low Frequency (LF) and 13.56MHz High Frequency (HF) RFID cards in a single compact device. Built for fast and reliable RFID identification, this plug-and-play reader is ideal for access control, employee attendance, visitor management, membership systems, library management, healthcare, asset tracking, and industrial automation.
Powered directly through the USB interface, the SRK Combi Reader HL40 requires no external power supply and offers seamless integration with Windows, Linux, and compatible operating systems. It supports popular LF cards such as EM4100 and TK4100, along with HF cards including MIFARE Classic, NFC Type A, and ISO/IEC 14443A compatible smart cards.
With a fast card detection time of less than 100ms, built-in LED and buzzer indicators, and a durable ABS enclosure, the SRK Combi Reader HL40 delivers dependable performance for commercial and industrial RFID applications. Its compact design and USB HID/Virtual COM communication make deployment simple for both developers and end users.
| Model | SRK Combi Reader HL40 |
| Product Type | Dual Frequency LF & HF USB RFID Reader |
| Operating Frequency | 125 kHz (LF) & 13.56 MHz (HF) |
| Supported Cards | EM4100, TK4100, MIFARE Classic (1K/4K), NFC Type A, ISO/IEC 14443A Compatible Cards |
| Interface | USB 2.0 |
| Communication Mode | USB HID Keyboard / Virtual COM Port (Firmware Dependent) |
| Operating Voltage | DC 5V (USB Powered) |
| Reading Distance | Up to 5 cm (Depending on Card Type) |
| Card Detection Time | Less than 100 ms |
| Operating Current | Less than 30 mA |
| Status Indicators | Built-in LED and Buzzer |
| Operating Temperature | -30°C to +80°C |
| Material | ABS Plastic |
| Dimensions | 75 × 110 × 20 mm |
| Weight | 250 g |
Shipping
All our orders are online over phone and email. After you place your order, we will send you an e-mail acknowledgement. Our phone, whatsapp and email addresses are available in the contact us section of website. We will start processing your order only after we have received payment. By placing an order on srkinnovations, you agree that you are buying for your business needs. If material is in stock or readily available, we dispatch in 1-3 workings business days. For special order or out of stock items delivery times are 2 weeks. If we are not able to fulfill your order then we will refund your entire amount within 15 business days. If order times exceed what we have committed to, we will contact you to determine if you want to execute the order with the new delivery time. We currently do not accept orders for international shipping on our website. If you are an international customer please email us your requirement at info@srkinnovations.com and we will determine whether we can fulfill your order or not.
Returns and Exchanges
We offer returns and exchanges only against manufacturing defects
Refund Policy
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at info@srkinnovations.com Please note that returns will need to be sent to the following address: [110, New Dyneshwar Nagar, Manewada Road, Nagpur 440027]. Items sent back to us without first requesting a return will not be accepted. We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be able to get refunded amount on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too. If more than 15 business days have passed since we’ve approved your return, please contact us at info@srkinnovations.com
Damages and Issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain type of items cannot be returned, like custom products (such as special orders or personalized items). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
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We understand that circumstances may change. To change or cancel an order, please contact our customer support team as soon as possible. If the order has not yet been processed, we will do our best to accommodate your request.
To make payments hassle-free, we support different methods. You can choose to pay through UPI apps like Google Pay, PhonePe, Paytm, or with your Debit/Credit Card. For added flexibility, we also provide EMI payment options.
Yes, we take the security of your payment information very seriously. We use encryption, secure payment gateways, regular security audits, account protection, and safe logout features to keep your data safe.
You can track your order by logging into your account and navigating to the "Order History" section. There, you'll find information on your recent orders and their current status. Additionally, you will receive email updates with tracking information as your order progresses.
In case a damaged or defective product reaches you, don’t worry! Just share the details with us and our team will assist you promptly.
You can reach our customer support team by visiting the "Contact Us" page on our website. We offer multiple contact options, including email, phone, and a live chat feature. Our support team is available 10AM-7PM to assist you with any questions or concerns, Or mail on support@srkinnovations.com
Absolutely. We take your security seriously and use industry-standard encryption technology to protect your personal and payment information. You can learn more about our security measures in our Privacy & Security Policy.
